A cyanide-bridged di-manganese carbonyl complex that photochemically reduces CO 2 to CO

Hsin Ya Kuo, Tia S. Lee, An T. Chu, Steven E. Tignor, Gregory D. Scholes, Andrew Bruce Bocarsly

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Manganese(i) tricarbonyl complexes such as [Mn(bpy)(CO) 3 L] (L = Br, or CN) are known to be electrocatalysts for CO 2 reduction to CO. However, due to their rapid photodegradation under UV and visible light, these monomeric manganese complexes have not been considered as photocatalysts for CO 2 reduction without the use of a photosensitizer. In this paper, we report a cyanide-bridged di-manganese complex, {[Mn(bpy)(CO) 3 ] 2 (μ-CN)}ClO 4 , which is both electrocatalytic and photochemically active for CO 2 reduction to CO. Compared to the [Mn(bpy)(CO) 3 CN] electrocatalyst, our CN-bridged binuclear complex is a more efficient electrocatalyst for CO 2 reduction using H 2 O as a proton source. In addition, we report a photochemical CO 2 reduction to CO using the dimanganese complex under 395 nm irradiation.

Original languageEnglish (US)
Pages (from-to)1226-1236
Number of pages11
JournalDalton Transactions
Volume48
Issue number4
DOIs
StatePublished - Jan 1 2019

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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